David Letterman stalwart Calvert DeForest passed away at about age 86. Very--extremely unintentionally--funny guy, and the perfect nerd foil for Letterman's proto-postmodernism.
Here's a clip of DeForest in action from early in the Letterman's show's run at New York's Port Authority Bus Terminal, interviewing a driver and several women who look like my aunts, as they arrive in Fun City: